关于JS中一维数组和二维数组互转问题_javascript技巧

 arr1to2(arr, number) {        var arr2 = [];        let len = arr.length;        for (let i = 0, j = 0; i < len; i += number, j++) {          arr2[j] = arr.splice(0, number);        }        return arr2;      },

let arr1 = [        103.743896484375, 21.48374090716327, 101.05224609374999,        20.550508894195637, 103.60107421874999, 17.518344187852218      ];      console.log('一维数组:', arr1);      let arr2 = this.arr1to2(arr1, 2);      console.log('二维数组:', arr2);

    //二维数组转一维数组      let arr = [        [103.743896484375, 21.48374090716327],        [101.05224609374999, 20.550508894195637],        [103.60107421874999, 17.518344187852218]      ];      console.log('二维数组:', arr);      let newarr = [];      for (const item of arr) {        newarr = [...newarr, ...item];      }      console.log('一维数组：', newarr);